As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED & ACFT WAS GNDED. DURING CRUISE AT FL 310, WE GOT A FALSE LOSS OF CABIN PRESSURE & INITIATED RAPID DESCENT TO 11,000 & HAD 3 SPURIOUS INDICATIONS OF LOSS OF PRESS. PRESS WAS NORMAL THROUGHOUT DESCENT. THE FLIGHT CREW DECLARED AN EMER & DIVERTED WHERE THE ACFT LANDED SAFELY. REPLACED CABIN SYS 2 CONTROLLER & ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK IAW AMM 21-31-34-400-001-A.